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Questions tagged [mk2a]

Use this tag for questions about the MK2a heat bed platform.

The MK2a is a certain layout of a heated bed platform. It is based on a heated bed (MK1) design by Josef Průša. It comprises of a 2 mm thick Printed Circuit Board (PCB) with an etched copper pattern, the resistor. Its size is 214 x 214 mm with an effective heating area of 200 x 200 mm and can be operated at either 12 or 24 Volts (please note how to attach the wires).

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Do the TW, THW and THHN or THWN wire insulation types matter in terms of powering RAMPS 1.4 or the MK2a Heat Bed?

I'm still looking at wires for my Prusa i3, to go between the power supply and RAMPS 1.4, and the power supply and the MK2a Heatbed. I also recently found a 400 ft. Wire Storehouse that I bought from Harbor Freight which has wire sizes in it from…
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How to properly use Polyisocyanurate (PIR) foam with the heated bed?

From what I understand, it takes a really long time for the heated bed to heat up using an MK2a heated bed. I've heard some people suggest that using Polyisocyanurate (PIR) foam (insulation that takes quite a bit of heat to catch on fire) can be…
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What solder specs are safe to use when soldering wires to an Mk2a heat bed?

I've already asked which wires I should use, and I believe I have that covered now, but I was also wondering what solder / specs on the solder are considered safe when attaching my wires to my heat bed. I have some solder here at the house, it's…
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Can I use 20 gauge wire for my Mk2a Heatbed?

I purchased the following wire for my MK2a heated bed: McMaster Carr 1 8209K11 840 Degree F Braided Oven Wire 20 Gauge, Tan, 10 ft. Length 1 Will this be acceptable? I'd like to print with ABS, which I know that the heatbed has to be hotter than…
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